Home / 527,578.34-791,365.40-128,220.28

Finding the Fourth Proportional to 527,578.34, 791,365.40 and 128,220.28

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Solution

The fourth proportional to 527,578.34, 791,365.40 and 128,220.28 is: 192,329.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,578.34 : 791,365.40 = 128,220.28 : x
  2. Step 2: Convert to fraction form
    527,578.34/791,365.40 = 128,220.28/x
  3. Step 3: Cross multiply
    527,578.34x = 791,365.40 × 128,220.28
  4. Step 4: Simplify right side
    527,578.34x = 101,469,093,170.31
  5. Step 5: Solve for x
    x = 101,469,093,170.31/527,578.34
  6. Step 6: Final answer
    x = 192,329.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.